치위생과학회지 (Journal of dental hygiene science)

  • 제23권2호
  • /
  • Pages.112-122
  • /
  • 2023
  • /
  • 1598-4478(pISSN)
  • /
  • 2233-7679(eISSN)
한국치위생과학회 (The Korean Society of Dental Hygiene Science)
권호 표지
DOI QR코드

DOI QR Code

Effects of a Prefabricated Functional Orthodontic Appliance on Children with Class II Division 1 Malocclusion

  • So-Youn An (Department of Pediatric Dentristry & Wonkwang Bone Regeneration Research Institute, College of Dentistry, Wonkwang University) ;
  • Eun-Hee Kim (Wonkwang University College of Dentistry) ;
  • Ho-Uk Lee (Wonkwang University College of Dentistry) ;
  • Sang-Ho Bak (Wonkwang University College of Dentistry) ;
  • Hyo-Jin Kang (Wonkwang University College of Dentistry) ;
  • Youn-Soo Shim (Department of Dental Hygiene, Sunmoon University)
  • 투고 : 2023.05.17
  • 심사 : 2023.06.07
  • 발행 : 2023.06.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Background: This study aimed to evaluate the effect of a prefabricated functional appliance (Myobrace®) on skeletal, dental, and soft tissue components in children with Class II, division 1 malocclusion. Methods: Thirteen patients with Class II, division 1 malocclusion (9 girls and 4 boys; mean age, 8.2±0.9 years at the start and 9.3±1.0 years at the end of the treatment) were treated with Myobrace® for a mean period of 12.9±4.0 months. Patients were instructed to use the appliance daily for 1 hour and overnight while sleeping. A control group of 10 patients with untreated Class II, division 1 malocclusion (3 girls and 7 boys; mean age, 9.0±1.6 years at the start and 10.4±2.1 years at the end of the observation) was included to eliminate possible growth effects. The mean observation period for this group was 17.7±11.2 months. Lateral cephalograms were taken at the start and end of the treatment, and findings from 41 measurements were analyzed using the V-CephTM program. The mean and standard deviation of cephalometric measurements were analyzed using paired and independent sample t-tests. Results: The treatment group showed significant changes in SNB, ANB, maxillary protrusion, ramus height, proclination of upper anterior teeth, interincisal angle, overjet, and upper lip protrusion compared with the control group. However, only decrease in ANB, maxillary protrusion, overjet, upper lip protrusion, and increase in interincisal angle were significantly higher in the treatment group than in the control group. Conclusion: The prefabricated functional appliance induced skeletal, dentoalveolar, and soft tissue changes, resulting in a significant reduction in anteroposterior discrepancy.

키워드

과제정보

This paper was supported by Wonkwang University in 2022.

참고문헌

  1. Brodle AG: Muscular factors in the diagnosis and treatment of malocclusions. Angle Orthod 23: 71-77, 1953.
  2. Rinchuse DJ, Rinchuse DJ: Ambiguities of Angle's classification. Angle Orthod 59: 295-298, 1989.
  3. Proffit WR, Fields HW Jr, Moray LJ: Prevalence of malocclusion and orthodontic treatment need in the United States: estimates from the NHANES III survey. Int J Adult Orthodon Orthognath Surg 13: 97-106, 1998.
  4. Piao Y, Kim SJ, Yu HS, Cha JY, Baik HS: Five-year investigation of a large orthodontic patient population at a dental hospital in South Korea. Korean J Orthod 46: 137-145, 2016. https://doi.org/10.4041/kjod.2016.46.3.137
  5. McNamara JA Jr: Components of class II malocclusion in children 8-10 years of age. Angle Orthod 51: 177-202, 1981.
  6. Frankel R: The treatment of Class II, Division 1 malocclusion with functional correctors. Am J Orthod 55: 265-275, 1969. https://doi.org/10.1016/0002-9416(69)90106-7
  7. Clark WJ: The twin block traction technique. Eur J Orthod 4: 129-138, 1982. https://doi.org/10.1093/ejo/4.2.129
  8. Koroluk LD, Tulloch JF, Phillips C: Incisor trauma and early treatment for Class II Division 1 malocclusion. Am J Orthod Dentofacial Orthop 123: 117-125; discussion 125-126, 2003. https://doi.org/10.1067/mod.2003.86
  9. Brin I, Ben-Bassat Y, Heling I, Brezniak N: Profile of an orthodontic patient at risk of dental trauma. Endod Dent Traumatol 16: 111-115, 2000. https://doi.org/10.1034/j.1600-9657.2000.016003111.x
  10. Kim MS, Kim JS, Yoo SH: Pre-orthodontic treatment with myofunctional appliance. J Korean Acad Pediatr Dent 32: 620-627, 2005.
  11. An SY, Kim AH, Shim YS, Kim MJ: Early treatment of a Class II malocclusion with the trainer for kids (T4K): a case report. J Dent Rehabil Appl Sci 29: 101-110, 2013. https://doi.org/10.14368/jdras.2013.29.1.101
  12. Usumez S, Uysal T, Sari Z, Basciftci FA, Karaman AI, Guray E: The effects of early preorthodontic trainer treatment on Class II, division 1 patients. Angle Orthod 74: 605-609, 2004.
  13. Landis JR, Koch GG: The measurement of observer agreement for categorical data. Biometrics 33: 159-174, 1977. https://doi.org/10.2307/2529310
  14. Baccetti T, Franchi L, McNamara JA Jr, Tollaro I: Early dentofacial features of Class II malocclusion: a longitudinal study from the deciduous through the mixed dentition. Am J Orthod Dentofacial Orthop 111: 502-509, 1997. https://doi.org/10.1016/s0889-5406(97)70287-7
  15. Gois EG, Ribeiro-Junior HC, Vale MP, et al.: Influence of nonnutritive sucking habits, breathing pattern and adenoid size on the development of malocclusion. Angle Orthod 78: 647-654,
  16. Linder-Aronson S, Woodside DG, Hellsing E, Emerson W: Normalization of incisor position after adenoidectomy. Am J Orthod Dentofacial Orthop 103: 412-427, 1993. https://doi.org/10.1016/S0889-5406(05)81792-5
  17. Wishney M, Darendeliler MA, Dalci O: Myofunctional therapy and prefabricated functional appliances: an overview of the history and evidence. Aust Dent J 64: 135-144, 2019. https://doi.org/10.1111/adj.12690
  18. Janson GR, da Silva CC, Bergersen EO, Henriques JF, Pinzan A: Eruption Guidance Appliance effects in the treatment of Class II, Division 1 malocclusions. Am J Orthod Dentofacial Orthop 117: 119-129, 2000. https://doi.org/10.1016/s0889-5406(00)70222-8
  19. Keski-Nisula K, Hernesniemi R, Heiskanen M, Keski-Nisula L, Varrela J: Orthodontic intervention in the early mixed dentition: a prospective, controlled study on the effects of the eruption guidance appliance. Am J Orthod Dentofacial Orthop 133: 254-260; quiz 328.e2, 2008. https://doi.org/10.1016/j.ajodo.2006.05.039
  20. Cirgic E, Kjellberg H, Petzold M, Hansen K: A cost-minimization analysis of large overjet reduction with two removable functional appliances based on a randomized controlled trial. Eur J Orthod 40: 437-443, 2018. https://doi.org/10.1093/ejo/cjx077
  21. Idris G, Hajeer MY, Al-Jundi A: Soft- and hard-tissue changes following treatment of Class II division 1 malocclusion with Activator versus Trainer: a randomized controlled trial. Eur J Orthod 41: 21-28, 2019. https://doi.org/10.1093/ejo/cjy014
  22. Cirgic E, Kjellberg H, Hansen K: Treatment of large overjet in Angle Class II: division 1 malocclusion with Andresen activators versus prefabricated functional appliances-a multicenter, randomized, controlled trial. Eur J Orthod 38: 516-524, 2016. https://doi.org/10.1093/ejo/cjv080
  23. Myrlund R, Dubland M, Keski-Nisula K, Kerosuo H: One year treatment effects of the eruption guidance appliance in 7- to 8-year-old children: a randomized clinical trial. Eur J Orthod 37: 128-134, 2015. https://doi.org/10.1093/ejo/cju014
  24. Little RM, Riedel RA, Artun J: An evaluation of changes in mandibular anterior alignment from 10 to 20 years postretention. Am J Orthod Dentofacial Orthop 93: 423-428, 1988. https://doi.org/10.1016/0889-5406(88)90102-3